Pros and Cons: The Material of Greenhouse Cover

The agricultural greenhouse is used for growing plants or crops in a structure with walls and a roof made principally of transparent material. The interior of a greenhouse exposed to sunlight is significantly warmer than the external temperature, protecting its plants from extreme conditions. Greenhouse farming can increase production, minimize production risks, reduce disease and pests and support year-round growing. In a greenhouse system, cover material impacts the level and quality of the crop. There are various materials that provide light to pass through and give amounts of light distribution. Start a greenhouse, you will have the opportunity to choose your own design. This article will explain the pros and cons of different materials of greenhouse cover.

Glass

Class greenhouses are luxurious, high clarity, permanent and tradition covering material. You can choose from several types of glass options to improve insulation. It is durable and long life, for 40-50 years without failure. Glass greenhouse structural framing is generally stronger than another greenhouse.

Pros:

High light transmission
Durable, long-life service
High clarity for sunlight
Block UV rays

Cons:

Strict greenhouse framework
Higher initial cost and high maintenance cost
Vulnerability
Prone to hail and bad weather damage

Polyethylene films

Plastic films are the most common and lowest cost type of greenhouse cover. Polyethylene greenhouses are relatively easy to build and have higher efficient light transmitters. While polyethylene film has a short lifespan,1-4 years of service. Over time, it becomes yellow, tears, and affects the light transmission. So the biggest problem is we need to replace the greenhouse film frequently.

Pros:

Low initial investment
Easier setup and maintenance
Better functional properties

Cons:

Prone to wind damage
Increased replacement

Polycarbonate Cover

Polycarbonate sheets are considered one of the best greenhouse covering materials replacing glass as the glazing option. We usually use the 6mm twin-wall or double-wall polycarbonate sheets for greenhouse covering. It offers a long lifespan service lasting for ten years or more. Providing heat in cold weather and humidity-retaining. 4ft X 19ft twin-wall and double-wall polycarbonate for greenhouse. Supporting cut to size.

Pros:

Durable, 10-15 years lifespan
82% high light transmission
Excellent thermal insulation
UV protection, anti-yellow and aging

Cons:

Higher inital cost
Easy to scratch
Can get dusty, algae between the panels

Conclusion

Compare with glass, plastic, and polycarbonate greenhouse cover,6mm twin-wall polycarbonate greenhouse panels are most suitable. Glass panels are heavier and need more structure to support them, so the construction cost is an initially a high investment. In addition, a glass greenhouse is prone to catastrophe, and hailstone. Once it broke, we need much cost to maintain.  Polyethylene films are the lowest cost and higher efficient light transmission. Over time, it becomes yellow and affects the light transmission. Need to replace against twice years. So compared with glass and plastic, polycarbonate greenhouse panels are higher impact resistance, hailstone resistance, 10-15 years lifespan, and are lightweight. Most importantly, polycarbonate sheets are a higher cost-effective choice. No need to maintain costs.

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